明朝成化年间，朝(cháo )纲腐败，奸(jiān )邪当道。西厂东厂为宦官把持(chí )，混淆黑白，陷害忠良，朝野内外噤若寒蝉(chán )。时有赵怀(huái )安（李连杰 饰(shì )）等流亡剑客挺身(shēn )而出，接连(lián )铲(chǎn )除(chú )东(dōng )厂数(shù )名奸佞，致令阉(yān )贼胆战心惊(jīng )。适值此时，风头(tóu )正劲的西厂